"google-serper": (_get_google_serper, ["serper_api_key"]),
    "serpapi": (_get_serpapi, ["serpapi_api_key", "aiosession"]),
    "searx-search": (_get_searx_search, ["searx_host"]),
    "wikipedia": (_get_wikipedia, ["top_k_results"]),
}
[docs]def load_tools(
    tool_names: List[str],
    llm: Optional[BaseLLM] = None,
    callback_manager: Optional[BaseCallbackManager] = None,
    **kwargs: Any,
) -> List[BaseTool]:
    """Load tools based on their name.
    Args:
        tool_names: name of tools to load.
        llm: Optional language model, may be needed to initialize certain tools.
        callback_manager: Optional callback manager. If not provided, default global callback manager will be used.
    Returns:
        List of tools.
    """
    tools = []
    for name in tool_names:
        if name in _BASE_TOOLS:
            tools.append(_BASE_TOOLS[name]())
        elif name in _LLM_TOOLS:
            if llm is None:
                raise ValueError(f"Tool {name} requires an LLM to be provided")
            tool = _LLM_TOOLS[name](llm)
            if callback_manager is not None:
                tool.callback_manager = callback_manager
            tools.append(tool)
        elif name in _EXTRA_LLM_TOOLS:
            if llm is None:
                raise ValueError(f"Tool {name} requires an LLM to be provided")
            _get_llm_tool_func, extra_keys = _EXTRA_LLM_TOOLS[name]
            missing_keys = set(extra_keys).difference(kwargs)